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Citation: GENG Yu-Zhen, LIU Kui, ZHOU Jie. Calcon-Sodium Carboxylate as Substrate in Enzymatic Determination of Hydrogen Peroxide[J]. Chinese Journal of Applied Chemistry, ;2002, 19(2): 199-201. shu

Calcon-Sodium Carboxylate as Substrate in Enzymatic Determination of Hydrogen Peroxide

1.
Shandong Agricultural University, Tai'an 271018

Corresponding author: GENG Yu-Zhen,
Received Date: 23 April 2001
Available Online: 6 August 2001

A discoloring reaction has been developed that calcon-sodium carboxylate could be oxidized by hydrogen peroxide in the presence of catalase. The optimum conditions, kinetic parameters and reaction mechanism have been investigated. The maximum initial velocity of reaction is 1.4×10^-6 mol/(L·s), and Michaelis constant K_m is 2.9×10^-5 mol/L. The linear range of determination for hydrogen peroxide is 0~2.6×10^-5 mol/L. The method has been applied to the determination of trace amount of hydrogen peroxide in rainwater.
- calcon-sodium carboxylate,
- hydrogen peroxide,
- catalytic discoloration
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